Valve lubricating mechanism



March 6, 1934. A. LINDSKOG VALVE LUBRICATING MECHANISM Filed Dec. 15,1933 lvu w INVENTOR Linda/ray ATTORNEES Patented Mar. 6, 1934 I UNITEDSTATES PATENT OFFICE VALVE LUBRICATING MECHANISM Arvid Lindskog, NewYork, N. Y.

Application December 15,1933, Serial No. 702,623

6 Claims. 184-6) This invention relates to valve lubricating bricantfrom the tank, and I illustrate in Figure mechanism, and more especiallyto an improved 4, more or less diagrammatically, the idea of means forlubricating the valves of internal comproviding force pumps 15 at theoutlets of the bustion engines, an object of the invention being tank 11which eject or force at each operation a to provide improved means forinsuring the known quantity of lubricant through the pipes 60,

proper supply of lubricant to the valve stem and 12, and this force feedmechanism may be consleeve therefor, and also to provide an improvedtrolled by any suitable means which forms no arrangement of hood whichprotects the stem part of the present invention. and the sleeve fromheat and flame. The pipes 12 communicate with ducts 16 in A furtherobject is to provide a construction the walls of the engine, and morespecifically and arrangement of parts, in which a hood carin the wall ofthe chamber 7, and each duct- 16 ried by the valve stem reciprocates ona piston communicates with a duct or passage 17 excarried by the sleeveso that these parts functending upwardly and longitudinally of thesleeve tion somewhat after the manner of a pump to 5 to the upper end ofsaid sleeve, and on the .5 draw oil into contact with the stem andmaintain upper end of the sleeve 5 a washer 18 is located the stemnicely lubricated under all conditions. around the stem 4 and thiswasher is preferably With these and other objects in view, the inof feltso that it will absorb and hold a certain vention consists in certainnovel features of conquantity of lubricant in contact at all times withstruction and combinations and arrangements the stem 4. To insure properfeed of the lubriof parts, all of which will be more fully hereincantand prevent any possibility of the washer 75. after described andpointed out in the claims. 18 cutting off this feed the washer ispreferably In the accompanying drawing, segmental in form, and the endof the sleeve is Figure 1 is a view mainly in vertical section made withan enlargement 0 w; 9 t e Oute illustrating my invention in connectionwith 2, d of the passage d as Clearly Shown 25 valve of an internalcombustion engine; in Figure 3 0f e d awing. so,

Figure 2 is a fragmentary view in elevation of The reference numeral 20is e p to indithe lubricant supply tank and connected parts; ate acup-like piston w ch fi s Over the pp Figure 3 is an enlarged view intransverse end of the sleeve 5 above the washer 18, and has tion on theline 3/3 of Figure 1; and fixed relation to the sleeve and may have asuit- :0 Figure 4 is a fragmentary detail view illustratl pa ring 21 a dt s A p 85, in a modification, tecting hood 22 fits the piston 20, isopen at its 1 represents the cylinder nd 2 th piston of lower end, andhas a reduced sleeve 23 thereon an internal combustion engine. It is tobe underwhich fits the Stem 4 and s c ed to the Stem stood that myimproved lubricating mechanism in y approved manner- This mod 22 iscaused is is applied to all of the valves, both inlet and to reciprocateon the piston 20 whenever the 90. exhaust, of an internal combustionengine, but, valve 3 is opened and closed, and this movement forpurposes of description We 111 assume t t of the hood in its relation tothe piston constii Figure 1 th i ti is illustrated in tutes in eiieot apump which insures a movement nection with an exhaust valve 3. Thisexhaust 0f the lubricant 50 that it Will saturate the 40 alve is of therdinary tappef, type having a, washer 18, Will be drawn through thpiston 20 5 stem 4 fixed thereto, and movable in a sleeve 5. to theSurface of the Stem, and Will be forced 5 represents t exhaust manifgldwhich down the stem within the sleeve 5 so that the municates t achamber 7 f the valve 3 and valve stem will be sufficiently lubricatedat all controls a port 8 between this chamber '7 and timesa: a passage 9in the head 10 of the engine. The upper d f he piston 20 15 preferab y Ipreferably employ at som convenient 1 dished, as indicated at 24, todirect lubricant tion, preferably adjacent the engine itself, a luabovethe piston toward the Stem 011 e OW bricant reservoir or tank 11, withindividual pipes stroke of the hood. This hood 22 may, Of ou 12connecting said tank or reservoir with the b made in various Ways but Ie a ly form 5; respective valve stems. In Figures 1 and 2 the the samewith an inner lining 25 of asbestos, so supply of lubricant is indicatedas controlled by that in effect the cup constitutes inner and outer theordinary drip mechanism 13 with sight gages metal members with thelining 25 between them 14 in the several lines, although it is clearlyunto prevent the transfer of heat. It will thus be derstood that theinvention is not limited to the noted that my improved lubricatingmechanism 5; specific manner of controlling the escape of lunot onlyincludes novel means for supplying lu- 1 bricant to the stem, but alsothe piston and hood or cylinder insure a forced movement of thelubricant around the stem; furthermore, the hood protects the stem, theupper end of the sleeve and adjacent parts from flame and the heattemperatures of the manifold and engine cylinder.

While I have indicated and described what I believe to be the preferredembodiment of my invention, it is to be distinctly understood thatvarious slight changes may be made with regard to the form andarrangement of parts without departing from my invention, and hence I donot limit myself tothe precise details set forth but consider myself atliberty to make such changes and alterations as fairly fall within thespirit and scope of the claims.

What I claim is:

1. A lubricant feeding mechanism for the valve stem of an internalcombustion engine comprising a piston adapted to be located on the guidesleeve of the valve stem, a hood fixed to the valve stem andreciprocating on the piston constituting a pump, and means for directinglubricant into said pump.

2. A lubricant feeding mechanism for the valve stem of an internalcombustion engine comprising a piston adapted to be located on the guidesleeve of the valve stem, a hood fixed to the valve stem andreciprocating on the piston constituting a pump, means for directinglubricant into said pump, said means including a lubricant reservoir,and a pipe connected to the reservoir and communicating with a duct inthe sleeve.

3. A lubricant feeding mechanism for the valve stem of an internalcombustion engine comprising a piston adapted to be located on the guidesleeve of the valve stem, a hood fixed to the valve stem andreciprocating on the piston constituting a pump, means for directinglubricant into said pump, said means including a lubricant reservoir,and a pipe connected to the reservoir and communicating with a duct inthe sleeve, said hood having a non-conducting lining interposed betweenan inner and outer metallic covering.

4. The combination with an internal combustion engine having a valve, astem on the valve, a sleeve constituting a guide for the stem and havinga lubricant duct therein, a lubricant reservoir outside of the engine, apipe directing lubricant from the reservoir to the duct in the sleeve,an absorbent washer around the stem on the sleeve, a cup-like piston atthe upper end of the sleeve secured to the sleeve, and a hood secured tothe stem and movable on the piston.

5. The combination with an internal combustion engine having a valve, astem on the valve, a sleeve constituting a guide for the stem and havinga lubricant duct therein, a lubricant reservoir outside of the engine, apipe directing lubricant from the reservoir to the duct in the sleeve,an absorbent washer around the stem on the sleeve, a cup-like piston atthe upper end of the sleeve secured to the sleeve, a hood secured to thestem and movable on the piston, said washer segmental in form, and a lugor enlargement on the end of the stem located at the ends of the washerand having an opening communicating with the duct in the sleeve.

6. A lubricating mechanism for the valves of internal combustion enginesincluding a reservoir outside of the engine, pipes extending from thereservoir, ducts or passages in the walls of the engines and in theguide sleeves of the valves for directing lubricant to the stems of thevalves, and suction means on the valve stems and sleeves whereby whenthe valves are opened and closed lubricant will be caused to move incontact with the stems of the valves.

ARVID LINDSKOG.

